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Biblioteca(s):  Embrapa Agroenergia.
Data corrente:  25/09/2013
Data da última atualização:  21/09/2017
Tipo da produção científica:  Artigo em Periódico Indexado
Autoria:  LAVIOLA, B. G.; OLIVEIRA, A. M. C. e.; BHERING, L. L.; ALVES, A. A.; ROCHA, R. B.; GOMES, B. E. L.; CRUZ, C. D.
Afiliação:  BRUNO GALVEAS LAVIOLA, CNPAE; Ana Maria Cruz e Oliveira, Universidade Federal de Viçosa; Leonardo Lopes Bhering, Universidade Federal de Viçosa; ALEXANDRE ALONSO ALVES, CNPAE; RODRIGO BARROS ROCHA, CPAF-RO; Bruno Ermelindo Lopes Gomes, Universidade Federal de Viçosa; Cosme Damião Cruz, Universidade Federal de Viçosa.
Título:  Estimates of repeatability coefficients and selection gains in Jatropha indicate that higher cumulative genetic gains can be obtained by relaxing the degree of certainty in predicting the best families.
Ano de publicação:  2013
Fonte/Imprenta:  Industrial Crops and Products, v. 51, p. 70-76, 2013.
DOI:  10.1016/j.indcrop.2013.08.016
Idioma:  Inglês
Conteúdo:  The aim of this study was to estimate the repeatability coefficient of grain production in Jatropha, theminimum number of measurements needed to reliably predict the genetic value of selected families, andto determine the cumulative genetic gains when considering the selection of the best families based ondifferent number of measurements. The experiment was conducted with 175 accessions (half-siblingsprogenies derived from selected plants in the field) that compose part of a germplasm collection. Suchbank was established in a randomized block design with two blocks. In each block a given accession wasrepresented in a 5 plant/plot scheme (half-siblings). For the analysis, yield data obtained in the yearsof 2009?2012 were considered. The results of this study indicate that the repeatability coefficient ofgrain production in Jatropha is low (0.37), but comparable to other perennial species, and that to achievereliabilities of 70 and 80% in the prediction of breeding values of selected families, 4 and 7 years ofevaluation, respectively, are needed. The results of this study also indicate that the efficiency of earlyselection seems to be small in Jatropha since the coincidence rate of selected genotypes at early age (1 or2 years of evaluation) and genotypes selected in adult age (4 years assessment) is small (17?23%). Finally,taking into account the repeatability coefficients and coefficients of determination, in a hypotheticalperiod of 21 years (which is equivalent to three sele... Mostrar Tudo
Palavras-Chave:  Crop energy; Jatropha curcas L; Selection.
Thesaurus Nal:  biodiesel; plant breeding; quantitative genetics.
Categoria do assunto:  --
Marc:  Mostrar Marc Completo
Registro original:  Embrapa Agroenergia (CNPAE)
Biblioteca ID Origem Tipo/Formato Classificação Cutter Registro Volume Status URL
CNPAE2253 - 1UPCAP - DD
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Biblioteca(s):  Embrapa Amapá.
Data corrente:  28/11/2021
Data da última atualização:  28/11/2021
Tipo da produção científica:  Artigo em Periódico Indexado
Circulação/Nível:  C - 0
Autoria:  COSTA, D. P. da; CASTILHO, C. de L.; SANTOS, U. R. A. dos; GEMAQUE, T. C.; DAMASCENO, L. F.; LIMA, J. de F.; MIRANDA FILHO, K. C.
Afiliação:  DANIEL PEREIRA DA COSTA, UEAP; CLAUDIANA DE LIMA CASTILHO, UFRA; UCLÉDIA ROBERTA ALBERTO DOS SANTOS, UFSC; TAINÁRA CUNHA GEMAQUE, UFMG; LEANDRO FERNANDES DAMASCENO, CPAF-AP; JO DE FARIAS LIMA, CPAF-AP; KLEBER CAMPOS MIRANDA FILHO, UFMG.
Título:  Effect of dietary carotenoids on reproducers of Amazon River prawn Macrobrachium amazonicum. Part 1: metabolism,morphometric / zootechnical indexes, body composition and gametes.
Ano de publicação:  2021
Fonte/Imprenta:  Journal of Agricultural Studies, v. 9, n. 2, p. 32-56, 2021.
Idioma:  Inglês
Conteúdo:  The inclusion of natural extracts and solution of synthetic astaxan thin in the Macrobrachium amazonicum diet w ere tested to verify their effect on performance, body indexes and total accumulation of astaxanthin in the reproductive tissues and gametes of this crustacean in comparison with newly captured wild animals. The e xperi ment was randomized in blocks (five treatments with three replicates). Four groups were submitted, during 20 days, to diets in recirculation tanks: control diet (CONT); diet containing natural extract of “buriti” (CAR); diet with inclusion of natural “uruc um” extract (BIXN), diet with syntheti c astaxanthin (ASTX) and NATURAL group (not fed with ration). 180 prawns were used, with 60 males (6.08±1.96 g) and 120 females (4.55±1.03 g) distributed in five groups containing four males and eight females each . The re were no significant differences in performance and body indexes. The number of released spermatozoids, live spermatozoids, body and egg pigmentation was higher in BIXN and ASTX treatments. The ASTX treatment was superior to the NATURAL group in the body pigmentation of females and eggs and release of spermatophores by males. These results demonstrate that the use of natural and artificial carotenoid pigments in the diet are beneficial for reproduction of M. amazonicum.
Palavras-Chave:  Electroejaculation; Prawn culture.
Thesagro:  Buriti; Urucum.
Thesaurus NAL:  Astaxanthin; Reproductive performance.
Categoria do assunto:  S Ciências Biológicas
URL:  https://www.alice.cnptia.embrapa.br/alice/bitstream/doc/1136703/1/CPAF-AP-2021-Effect-of-dietary-carotenoids-part-1.pdf
Marc:  Mostrar Marc Completo
Registro original:  Embrapa Amapá (CPAF-AP)
Biblioteca ID Origem Tipo/Formato Classificação Cutter Registro Volume Status
CPAF-AP18407 - 1UPCAP - DD
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